[INFO] fetching crate forkjoin 2.3.0...
[INFO] documenting forkjoin-2.3.0 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate forkjoin 2.3.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate forkjoin 2.3.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate forkjoin 2.3.0
[INFO] finished tweaking crates.io crate forkjoin 2.3.0
[INFO] tweaked toml for crates.io crate forkjoin 2.3.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0e09280e8bc03a8efae15e1b7c864e2914f7b76722d0fe6e10474bfb17113868
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0e09280e8bc03a8efae15e1b7c864e2914f7b76722d0fe6e10474bfb17113868", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0e09280e8bc03a8efae15e1b7c864e2914f7b76722d0fe6e10474bfb17113868", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e09280e8bc03a8efae15e1b7c864e2914f7b76722d0fe6e10474bfb17113868", kill_on_drop: false }`
[INFO] [stdout] 0e09280e8bc03a8efae15e1b7c864e2914f7b76722d0fe6e10474bfb17113868
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 34c13ff6d3759ef0d8c21bdc18796ab442e9a7e11d9b6f63085a508d2bd767e4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "34c13ff6d3759ef0d8c21bdc18796ab442e9a7e11d9b6f63085a508d2bd767e4", kill_on_drop: false }`
[INFO] [stderr]     Checking num_cpus v0.2.13
[INFO] [stderr]     Checking deque v0.2.3
[INFO] [stderr]  Documenting forkjoin v2.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: could not find `funcs` in `libc`
[INFO] [stdout]   --> src/workerthread.rs:21:11
[INFO] [stdout]    |
[INFO] [stdout] 21 | use libc::funcs::posix88::unistd::usleep;
[INFO] [stdout]    |           ^^^^^ could not find `funcs` in `libc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `JoinGuard` in module `thread`
[INFO] [stdout]   --> src/workerthread.rs:81:39
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub fn spawn(mut self) -> thread::JoinGuard<'a, ()> {
[INFO] [stdout]    |                                       ^^^^^^^^^ not found in `thread`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `JoinGuard` in module `thread`
[INFO] [stdout]   --> src/poolsupervisor.rs:42:24
[INFO] [stdout]    |
[INFO] [stdout] 42 |     joinguard: thread::JoinGuard<'thread, ()>,
[INFO] [stdout]    |                        ^^^^^^^^^ not found in `thread`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `JoinGuard` in module `thread`
[INFO] [stdout]   --> src/poolsupervisor.rs:54:79
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub fn spawn(nthreads: usize) -> (Sender<SupervisorMsg<Arg,Ret>>, thread::JoinGuard<'t, ()>) {
[INFO] [stdout]    |                                                                               ^^^^^^^^^ not found in `thread`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `JoinGuard` in module `thread`
[INFO] [stdout]    --> src/poolsupervisor.rs:122:38
[INFO] [stdout]     |
[INFO] [stdout] 122 |     fn start_thread(self) -> thread::JoinGuard<'t, ()> {
[INFO] [stdout]     |                                      ^^^^^^^^^ not found in `thread`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `JoinGuard` in module `thread`
[INFO] [stdout]    --> src/lib.rs:449:24
[INFO] [stdout]     |
[INFO] [stdout] 449 |     joinguard: thread::JoinGuard<'a, ()>,
[INFO] [stdout]     |                        ^^^^^^^^^ not found in `thread`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> src/lib.rs:221:1
[INFO] [stdout]     |
[INFO] [stdout] 221 | #![feature(unique)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> src/lib.rs:222:1
[INFO] [stdout]     |
[INFO] [stdout] 222 | #![feature(scoped)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> src/lib.rs:223:1
[INFO] [stdout]     |
[INFO] [stdout] 223 | #![feature(libc)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 10 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0433, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `forkjoin`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name forkjoin src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern deque=/opt/rustwide/target/debug/deps/libdeque-18df407b7cd3efea.rmeta --extern num_cpus=/opt/rustwide/target/debug/deps/libnum_cpus-af349a3cdd2cd3fc.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-577ffa6562df8c78.rmeta --cap-lints=warn --crate-version 2.3.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "34c13ff6d3759ef0d8c21bdc18796ab442e9a7e11d9b6f63085a508d2bd767e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34c13ff6d3759ef0d8c21bdc18796ab442e9a7e11d9b6f63085a508d2bd767e4", kill_on_drop: false }`
[INFO] [stdout] 34c13ff6d3759ef0d8c21bdc18796ab442e9a7e11d9b6f63085a508d2bd767e4
